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  <h1 class="topictitle1">Capacity</h1>
 
   
  <div> 
	 
<div class="tablenoborder"><table cellpadding="4" summary="" frame="border" border="1" cellspacing="0" rules="all"><span class="tabledesc">The following table provides additional information on the members
		  of this template class. 
		</span><thead align="left"> 
			 <tr> 
				<th class="cellrowborder" valign="top" width="33.89830508474576%" id="d31764e29">Member 
				</th>
 
				<th class="cellrowborder" valign="top" width="66.10169491525423%" id="d31764e32">Description 
				</th>
 
			 </tr>
</thead>
 
		  <tbody> 
			 <tr> 
				<td class="cellrowborder" valign="top" width="33.89830508474576%" headers="d31764e29 "><span class="keyword">size_type size() const</span> 
				</td>
 
				<td class="cellrowborder" valign="top" width="66.10169491525423%" headers="d31764e32 "> 
				  <p><strong>Returns</strong>: Number of key-value pairs
					 in the table. 
				  </p>
 
				  <div class="Note"><h3 class="NoteTipHead">
					Note</h3> 
					 <p>This method takes constant time, but is
						slower than for most STL containers. 
					 </p>
 
				  </div> 
				</td>
 
			 </tr>
 
			 <tr> 
				<td class="cellrowborder" valign="top" width="33.89830508474576%" headers="d31764e29 "><span class="keyword">bool empty() const</span> 
				</td>
 
				<td class="cellrowborder" valign="top" width="66.10169491525423%" headers="d31764e32 "> 
				  <p><strong>Returns</strong>: 
					 <samp class="codeph">size()==0.</samp> 
				  </p>
 
				  <div class="Note"><h3 class="NoteTipHead">
					Note</h3> 
					 <p>This method takes constant time, but is
						slower than for most STL containers. 
					 </p>
 
				  </div> 
				</td>
 
			 </tr>
 
			 <tr> 
				<td class="cellrowborder" valign="top" width="33.89830508474576%" headers="d31764e29 "><span class="keyword">size_type max_size() const</span>
				  
				</td>
 
				<td class="cellrowborder" valign="top" width="66.10169491525423%" headers="d31764e32 "> 
				  <p><strong>Returns</strong>: Inclusive upper bound on
					 number of key-value pairs that the table can hold. 
				  </p>
 
				</td>
 
			 </tr>
 
			 <tr> 
				<td class="cellrowborder" valign="top" width="33.89830508474576%" headers="d31764e29 "><span class="keyword">size_type bucket_count()
					 const</span> 
				</td>
 
				<td class="cellrowborder" valign="top" width="66.10169491525423%" headers="d31764e32 "> 
				  <p><strong>Returns</strong>: Current number of internal
					 buckets. See method 
					 <samp class="codeph">rehash</samp> for discussion of buckets. 
				  </p>
 
				</td>
 
			 </tr>
 
		  </tbody>
 
		</table>
</div>
 
  </div>
 
  
<div class="familylinks">
<div class="parentlink"><strong>Parent topic:</strong>&nbsp;<a href="../../../reference/containers_overview/concurrent_hash_map_cls.htm">concurrent_hash_map Template Class</a></div>
</div>
<div class="See Also">
<h2>See Also</h2>
<div class="linklist">
<div><a href="../concurrent_unordered_map_cls/hash_policy_map_cls.htm#hash_policy_map_cls">Hash Policy 
		  </a></div></div>
</div>

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